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Generally, the temperature drop under 0℃ on vaporizer surface creates frozen dews. This problem seems to increase as the time progress and humidity rises. In addition, the frozen dews create frost deposition. Consequently, heat transfer on vaporizer decreases because frost deposition causes adiabatic condition. Therefore, it is very important to solve this problem. This paper aims to study of the optimum design of used vaporizer at local LNG station. In this paper, experimental results were compared with numerical results. Geometries of numerical and experimental vaporizers were identical. Studied parameters of vaporizer are angle between two fins (Φ) and fin thickness (TH<SUB>F</SUB>). Numerical analysis results were presented through the correlations between the ice layer thickness (TH<SUB>ICE</SUB>) on the vaporizer surface to the temperature distribution of inside vaporizer (T<SUB>IN</SUB>), fin thickness (TH<SUB>F</SUB>), and angle between two fins (Φ). Numerical result shows good agreement with experimental outcome. Finally, the correlations for optimum design of vaporizer are proposed on this paper.

목차

Abstract
1. Introduction
2. Numerical Method
3. Numerical Analysis Results and Discussions
4. Comparison Between Numerical Analysis and Experiment
5. Conclusions
Acknowledgments
References

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UCI(KEPA) : I410-ECN-0101-2009-550-015505660